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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * IBM ASM Service Processor Device Driver4 *5 * Copyright (C) IBM Corporation, 20046 *7 * Authors: Max Asböck <amax@us.ibm.com>8 * Vernon Mauery <vernux@us.ibm.com>9 */10 11/* Remote mouse and keyboard event handling functions */12 13#include <linux/pci.h>14#include "ibmasm.h"15#include "remote.h"16 17#define MOUSE_X_MAX 160018#define MOUSE_Y_MAX 120019 20static const unsigned short xlate_high[XLATE_SIZE] = {21 [KEY_SYM_ENTER & 0xff] = KEY_ENTER,22 [KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH,23 [KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK,24 [KEY_SYM_KPMINUS & 0xff] = KEY_KPMINUS,25 [KEY_SYM_KPDOT & 0xff] = KEY_KPDOT,26 [KEY_SYM_KPPLUS & 0xff] = KEY_KPPLUS,27 [KEY_SYM_KP0 & 0xff] = KEY_KP0,28 [KEY_SYM_KP1 & 0xff] = KEY_KP1,29 [KEY_SYM_KP2 & 0xff] = KEY_KP2, [KEY_SYM_KPDOWN & 0xff] = KEY_KP2,30 [KEY_SYM_KP3 & 0xff] = KEY_KP3,31 [KEY_SYM_KP4 & 0xff] = KEY_KP4, [KEY_SYM_KPLEFT & 0xff] = KEY_KP4,32 [KEY_SYM_KP5 & 0xff] = KEY_KP5,33 [KEY_SYM_KP6 & 0xff] = KEY_KP6, [KEY_SYM_KPRIGHT & 0xff] = KEY_KP6,34 [KEY_SYM_KP7 & 0xff] = KEY_KP7,35 [KEY_SYM_KP8 & 0xff] = KEY_KP8, [KEY_SYM_KPUP & 0xff] = KEY_KP8,36 [KEY_SYM_KP9 & 0xff] = KEY_KP9,37 [KEY_SYM_BK_SPC & 0xff] = KEY_BACKSPACE,38 [KEY_SYM_TAB & 0xff] = KEY_TAB,39 [KEY_SYM_CTRL & 0xff] = KEY_LEFTCTRL,40 [KEY_SYM_ALT & 0xff] = KEY_LEFTALT,41 [KEY_SYM_INSERT & 0xff] = KEY_INSERT,42 [KEY_SYM_DELETE & 0xff] = KEY_DELETE,43 [KEY_SYM_SHIFT & 0xff] = KEY_LEFTSHIFT,44 [KEY_SYM_UARROW & 0xff] = KEY_UP,45 [KEY_SYM_DARROW & 0xff] = KEY_DOWN,46 [KEY_SYM_LARROW & 0xff] = KEY_LEFT,47 [KEY_SYM_RARROW & 0xff] = KEY_RIGHT,48 [KEY_SYM_ESCAPE & 0xff] = KEY_ESC,49 [KEY_SYM_PAGEUP & 0xff] = KEY_PAGEUP,50 [KEY_SYM_PAGEDOWN & 0xff] = KEY_PAGEDOWN,51 [KEY_SYM_HOME & 0xff] = KEY_HOME,52 [KEY_SYM_END & 0xff] = KEY_END,53 [KEY_SYM_F1 & 0xff] = KEY_F1,54 [KEY_SYM_F2 & 0xff] = KEY_F2,55 [KEY_SYM_F3 & 0xff] = KEY_F3,56 [KEY_SYM_F4 & 0xff] = KEY_F4,57 [KEY_SYM_F5 & 0xff] = KEY_F5,58 [KEY_SYM_F6 & 0xff] = KEY_F6,59 [KEY_SYM_F7 & 0xff] = KEY_F7,60 [KEY_SYM_F8 & 0xff] = KEY_F8,61 [KEY_SYM_F9 & 0xff] = KEY_F9,62 [KEY_SYM_F10 & 0xff] = KEY_F10,63 [KEY_SYM_F11 & 0xff] = KEY_F11,64 [KEY_SYM_F12 & 0xff] = KEY_F12,65 [KEY_SYM_CAP_LOCK & 0xff] = KEY_CAPSLOCK,66 [KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK,67 [KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK,68};69 70static const unsigned short xlate[XLATE_SIZE] = {71 [NO_KEYCODE] = KEY_RESERVED,72 [KEY_SYM_SPACE] = KEY_SPACE,73 [KEY_SYM_TILDE] = KEY_GRAVE, [KEY_SYM_BKTIC] = KEY_GRAVE,74 [KEY_SYM_ONE] = KEY_1, [KEY_SYM_BANG] = KEY_1,75 [KEY_SYM_TWO] = KEY_2, [KEY_SYM_AT] = KEY_2,76 [KEY_SYM_THREE] = KEY_3, [KEY_SYM_POUND] = KEY_3,77 [KEY_SYM_FOUR] = KEY_4, [KEY_SYM_DOLLAR] = KEY_4,78 [KEY_SYM_FIVE] = KEY_5, [KEY_SYM_PERCENT] = KEY_5,79 [KEY_SYM_SIX] = KEY_6, [KEY_SYM_CARAT] = KEY_6,80 [KEY_SYM_SEVEN] = KEY_7, [KEY_SYM_AMPER] = KEY_7,81 [KEY_SYM_EIGHT] = KEY_8, [KEY_SYM_STAR] = KEY_8,82 [KEY_SYM_NINE] = KEY_9, [KEY_SYM_LPAREN] = KEY_9,83 [KEY_SYM_ZERO] = KEY_0, [KEY_SYM_RPAREN] = KEY_0,84 [KEY_SYM_MINUS] = KEY_MINUS, [KEY_SYM_USCORE] = KEY_MINUS,85 [KEY_SYM_EQUAL] = KEY_EQUAL, [KEY_SYM_PLUS] = KEY_EQUAL,86 [KEY_SYM_LBRKT] = KEY_LEFTBRACE, [KEY_SYM_LCURLY] = KEY_LEFTBRACE,87 [KEY_SYM_RBRKT] = KEY_RIGHTBRACE, [KEY_SYM_RCURLY] = KEY_RIGHTBRACE,88 [KEY_SYM_SLASH] = KEY_BACKSLASH, [KEY_SYM_PIPE] = KEY_BACKSLASH,89 [KEY_SYM_TIC] = KEY_APOSTROPHE, [KEY_SYM_QUOTE] = KEY_APOSTROPHE,90 [KEY_SYM_SEMIC] = KEY_SEMICOLON, [KEY_SYM_COLON] = KEY_SEMICOLON,91 [KEY_SYM_COMMA] = KEY_COMMA, [KEY_SYM_LT] = KEY_COMMA,92 [KEY_SYM_PERIOD] = KEY_DOT, [KEY_SYM_GT] = KEY_DOT,93 [KEY_SYM_BSLASH] = KEY_SLASH, [KEY_SYM_QMARK] = KEY_SLASH,94 [KEY_SYM_A] = KEY_A, [KEY_SYM_a] = KEY_A,95 [KEY_SYM_B] = KEY_B, [KEY_SYM_b] = KEY_B,96 [KEY_SYM_C] = KEY_C, [KEY_SYM_c] = KEY_C,97 [KEY_SYM_D] = KEY_D, [KEY_SYM_d] = KEY_D,98 [KEY_SYM_E] = KEY_E, [KEY_SYM_e] = KEY_E,99 [KEY_SYM_F] = KEY_F, [KEY_SYM_f] = KEY_F,100 [KEY_SYM_G] = KEY_G, [KEY_SYM_g] = KEY_G,101 [KEY_SYM_H] = KEY_H, [KEY_SYM_h] = KEY_H,102 [KEY_SYM_I] = KEY_I, [KEY_SYM_i] = KEY_I,103 [KEY_SYM_J] = KEY_J, [KEY_SYM_j] = KEY_J,104 [KEY_SYM_K] = KEY_K, [KEY_SYM_k] = KEY_K,105 [KEY_SYM_L] = KEY_L, [KEY_SYM_l] = KEY_L,106 [KEY_SYM_M] = KEY_M, [KEY_SYM_m] = KEY_M,107 [KEY_SYM_N] = KEY_N, [KEY_SYM_n] = KEY_N,108 [KEY_SYM_O] = KEY_O, [KEY_SYM_o] = KEY_O,109 [KEY_SYM_P] = KEY_P, [KEY_SYM_p] = KEY_P,110 [KEY_SYM_Q] = KEY_Q, [KEY_SYM_q] = KEY_Q,111 [KEY_SYM_R] = KEY_R, [KEY_SYM_r] = KEY_R,112 [KEY_SYM_S] = KEY_S, [KEY_SYM_s] = KEY_S,113 [KEY_SYM_T] = KEY_T, [KEY_SYM_t] = KEY_T,114 [KEY_SYM_U] = KEY_U, [KEY_SYM_u] = KEY_U,115 [KEY_SYM_V] = KEY_V, [KEY_SYM_v] = KEY_V,116 [KEY_SYM_W] = KEY_W, [KEY_SYM_w] = KEY_W,117 [KEY_SYM_X] = KEY_X, [KEY_SYM_x] = KEY_X,118 [KEY_SYM_Y] = KEY_Y, [KEY_SYM_y] = KEY_Y,119 [KEY_SYM_Z] = KEY_Z, [KEY_SYM_z] = KEY_Z,120};121 122static void print_input(struct remote_input *input)123{124 if (input->type == INPUT_TYPE_MOUSE) {125 unsigned char buttons = input->mouse_buttons;126 dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n",127 input->data.mouse.x, input->data.mouse.y,128 (buttons) ? " -- buttons:" : "",129 (buttons & REMOTE_BUTTON_LEFT) ? "left " : "",130 (buttons & REMOTE_BUTTON_MIDDLE) ? "middle " : "",131 (buttons & REMOTE_BUTTON_RIGHT) ? "right" : ""132 );133 } else {134 dbg("remote keypress (code, flag, down):"135 "%d (0x%x) [0x%x] [0x%x]\n",136 input->data.keyboard.key_code,137 input->data.keyboard.key_code,138 input->data.keyboard.key_flag,139 input->data.keyboard.key_down140 );141 }142}143 144static void send_mouse_event(struct input_dev *dev, struct remote_input *input)145{146 unsigned char buttons = input->mouse_buttons;147 148 input_report_abs(dev, ABS_X, input->data.mouse.x);149 input_report_abs(dev, ABS_Y, input->data.mouse.y);150 input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT);151 input_report_key(dev, BTN_MIDDLE, buttons & REMOTE_BUTTON_MIDDLE);152 input_report_key(dev, BTN_RIGHT, buttons & REMOTE_BUTTON_RIGHT);153 input_sync(dev);154}155 156static void send_keyboard_event(struct input_dev *dev,157 struct remote_input *input)158{159 unsigned int key;160 unsigned short code = input->data.keyboard.key_code;161 162 if (code & 0xff00)163 key = xlate_high[code & 0xff];164 else165 key = xlate[code];166 input_report_key(dev, key, input->data.keyboard.key_down);167 input_sync(dev);168}169 170void ibmasm_handle_mouse_interrupt(struct service_processor *sp)171{172 unsigned long reader;173 unsigned long writer;174 struct remote_input input;175 176 reader = get_queue_reader(sp);177 writer = get_queue_writer(sp);178 179 while (reader != writer) {180 memcpy_fromio(&input, get_queue_entry(sp, reader),181 sizeof(struct remote_input));182 183 print_input(&input);184 if (input.type == INPUT_TYPE_MOUSE) {185 send_mouse_event(sp->remote.mouse_dev, &input);186 } else if (input.type == INPUT_TYPE_KEYBOARD) {187 send_keyboard_event(sp->remote.keybd_dev, &input);188 } else189 break;190 191 reader = advance_queue_reader(sp, reader);192 writer = get_queue_writer(sp);193 }194}195 196int ibmasm_init_remote_input_dev(struct service_processor *sp)197{198 /* set up the mouse input device */199 struct input_dev *mouse_dev, *keybd_dev;200 struct pci_dev *pdev = to_pci_dev(sp->dev);201 int error = -ENOMEM;202 int i;203 204 sp->remote.mouse_dev = mouse_dev = input_allocate_device();205 sp->remote.keybd_dev = keybd_dev = input_allocate_device();206 207 if (!mouse_dev || !keybd_dev)208 goto err_free_devices;209 210 mouse_dev->id.bustype = BUS_PCI;211 mouse_dev->id.vendor = pdev->vendor;212 mouse_dev->id.product = pdev->device;213 mouse_dev->id.version = 1;214 mouse_dev->dev.parent = sp->dev;215 mouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);216 mouse_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |217 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);218 set_bit(BTN_TOUCH, mouse_dev->keybit);219 mouse_dev->name = "ibmasm RSA I remote mouse";220 input_set_abs_params(mouse_dev, ABS_X, 0, MOUSE_X_MAX, 0, 0);221 input_set_abs_params(mouse_dev, ABS_Y, 0, MOUSE_Y_MAX, 0, 0);222 223 keybd_dev->id.bustype = BUS_PCI;224 keybd_dev->id.vendor = pdev->vendor;225 keybd_dev->id.product = pdev->device;226 keybd_dev->id.version = 2;227 keybd_dev->dev.parent = sp->dev;228 keybd_dev->evbit[0] = BIT_MASK(EV_KEY);229 keybd_dev->name = "ibmasm RSA I remote keyboard";230 231 for (i = 0; i < XLATE_SIZE; i++) {232 if (xlate_high[i])233 set_bit(xlate_high[i], keybd_dev->keybit);234 if (xlate[i])235 set_bit(xlate[i], keybd_dev->keybit);236 }237 238 error = input_register_device(mouse_dev);239 if (error)240 goto err_free_devices;241 242 error = input_register_device(keybd_dev);243 if (error)244 goto err_unregister_mouse_dev;245 246 enable_mouse_interrupts(sp);247 248 printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n", sp->number);249 250 return 0;251 252 err_unregister_mouse_dev:253 input_unregister_device(mouse_dev);254 mouse_dev = NULL; /* so we don't try to free it again below */255 err_free_devices:256 input_free_device(mouse_dev);257 input_free_device(keybd_dev);258 259 return error;260}261 262void ibmasm_free_remote_input_dev(struct service_processor *sp)263{264 disable_mouse_interrupts(sp);265 input_unregister_device(sp->remote.mouse_dev);266 input_unregister_device(sp->remote.keybd_dev);267}268 269